| Author: | Cai, Zhenyu |
| Title: | State space identification of inverter-based resources by applying vector fitting to the electromagnetic transients type impedance scan obtained |
| Advisors: | Wang, Qin (EEE) |
| Degree: | M.Sc. |
| Year: | 2024 |
| Department: | Department of Electrical and Electronic Engineering |
| Pages: | ix, 52 pages : color illustrations |
| Language: | English |
| Abstract: | The purpose of this paper is to explain the use of power control technology, inverter control technology, computer monitoring technology, and grid-connected control technology facilities in grid-connected control. As an example, the article uses the new energy grid-connected control technique that the firm has created as an example. In addition to that, the purpose of this study is to realize the analysis of new energy grid-connected control technology by discussing the application impact of new energy grid-connected control technology. It is feasible to establish a seamless integration of the new energy system into the existing power system by making effective use of a range of grid-connected control methods for managing new energy networks. This will allow for complete integration of the new energy system. At the same time as the absorption of new energy systems into the grid has the potential to enhance the rate at which new energy sources are used, it also has the ability to boost the degree of sustainable development in the field of power system construction. The vector fitting approach is used to model the frequency fluctuation DC line, and the components that influence it are investigated. This is done with the intention of achieving the frequency variation that occurs throughout the process of line propagation. The vector fitting approach is used in order to execute rational function approximation to the discrete locations that have been measured. This is accomplished by measuring the impedance frequency characteristic of the line. One to ten thousand hertz is the bandwidth that is suitable, and the mathematical analysis model of the direct current line that takes into account the frequency fluctuation characteristic is developed. On the basis of this, the third-order line equivalent model is constructed, and the impact of the line modeling effect is thoroughly investigated. To identify a valid state space model of Inverter-Based Resources (IBR) using vector fitting, methods of electromagnetic impedance scan (ETI-scan) has been proposed in this dissertation. The final results of vector fitting is around 80% , and the state space model of IBR is successfully set up. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 8498.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 5.74 MB | Adobe PDF | View/Open |
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